Communications Specifications; Communications Functions - Omron E5CD-800 Manual

Communications Specifications

Transmission
line connection RS-485: Multidrop
method
Communications RS-485 (two-wire, half duplex)
Synchronization
Start-stop synchronization
method
Protocol CompoWay/F, or Modbus
Baud rate * 9,600, 19,200, 38,400, 57,600, or 115,200 bps
Transmission
ASCII
code
Data bit length * 7 or 8 bits
Stop bit length * 1 or 2 bits
Vertical parity (none, even, odd)
Error detection Block check character (BCC) with
CompoWay/F or CRC-16 Modbus
Flow control None
Interface RS-485
Retry function None
Communications
217 bytes
buffer
Communications
0 to 99 ms
response wait
Default: 20 ms
time
* The baud rate, data bit length, stop bit length, and vertical parity can
be individually set using the Communications Setting Level.

Communications Functions

You can use the memory in the PLC to read and write
E5CD-800 parameters, start and stop operation, etc.
The E5CD-800 automatically performs
communications with PLCs. No communications
programming is required.
Number of connected Digital Temperature Controllers: 32
Programless
max. (Up to 16 for the FX3)
communications
Applicable PLCs
OMRON PLCs
Mitsubishi Electric PLCs
KEYENCE PLCs
When Digital Temperature Controllers are connected,
the parameters can be copied from the Digital
Copying *
Temperature Controller that is set as the master to the
Digital Temperature Controllers that are set as slaves.
MELSEC is a registered trademark of Mitsubishi Electric Corporation.
KEYENCE is a registered trademark of Keyence Corporation.
*Programless communications supports the copying function.
Current Transformer (Order Separately)
Ratings
E54-CT1
E54-CT3
Dielectric strength 1,000 VAC for 1 min
Vibration resistance
E54-CT1: Approx. 11.5 g
Weight
E54-CT3: Approx. 50 g
E54-CT3 Only
Accessories Armatures (2)
Plugs (2)
CS Series, CJ Series, CP
Series, NJ Series, or NX1P
MELSEC Q Series, L Series,
FX3 Series, or iQ-R Series
KEYENCE KV Series
E54-CT1L
E54-CT3L
1,500 VAC for 1 min
50 Hz, 98 m/s 2
E54-CT1L: Approx. 14 g
E54-CT3L: Approx. 57 g
None
Heater Burnout Alarms and SSR Failure
Alarms
CT input (for heater Models with detection for single-phase
current detection) heaters: One input
Maximum heater current 50 A AC
Input current
±5% FS ±1 digit max.
indication accuracy
Heater burnout alarm 0.1 to 49.9 A (in units of 0.1 A)
Minimum detection ON time: 100 ms *3
setting range *1
SSR failure alarm 0.1 to 49.9 A (in units of 0.1 A)
Minimum detection OFF time: 100 ms *4
setting range *2
*1. For heater burnout alarms, the heater current will be measured
when the control output is ON, and the output will turn ON if the
heater current is lower than the set value (i.e., heater burnout
detection current value).
*2. For SSR failure alarms, the heater current will be measured when the
control output is OFF, and the output will turn ON if the heater current
is higher than the set value (i.e., SSR failure detection current value).
*3. The value is 30 ms for a control period of 0.1 s or 0.2 s.
*4. The value is 38 ms for a control period of 0.1 s or 0.2 s.
Electrical Life Expectancy Curve for
Control Output Relay (Reference Values)
500
300
100
50
30
10
5
E5CD-800
250 VAC, 30 VDC
3
(resistive load)
cosφ = 1
1
0 1 2 3 4
Switching current (A)
E5CD-800
5 6
11